London, Jul 27:  Oscar-winning actor Robin Williams’ eldest son Zak is still mourning his loss, a year after the funnyman committed suicide. Also Read - Oscar-Winning Legendary Hollywood Actor Christopher Plummer Dies at 91

Zak, 32, revealed he is trying “to focus on the joyful moments and memories,” reported Female First.”We try to focus on the joyful moments and memories. We’re still grieving. We’re moving through the process of healing and recovering,” said Zak. (ALSO READ: Robin Williams tribute video goes viral ) Also Read - Pamela Anderson Ties the Knot for the Fifth Time, Marries her Bodyguard Dan Hayhurst

He celebrated what would have been his father’s 64th birthday on Tuesday along with his siblings Zelda, 25, and Cody, 23, as well as other relatives by having a private dinner, and said they have been helped by “wonderful family and friends” during the 11 months since Robin’s passing. Also Read - Deepika Padukone all Set For Her Second Hollywood Venture as She Signs With Talent Agency ICM